Zach’s ugly mug (his face) Zach Leat­herman

YUI Button Lite

March 23, 2007

Warning

This article is old and may contain information that is outdated, irrelevant, or—dare I say it—no longer accurate. Links may have rotted. Read and hyperlink with care!

Do you want the cool clean look of the new YUI Button component, but without all the seedy overhead of split buttons or button groups or components that shouldn’t even be pigeonholed into a button component to begin with? Keep in mind that this approach only works for the method called “Using pre-defined Button Control HTML.”

Well, here’s the trick to do it.

Create the button as the YUI Button Examples and Documentation say to do so. Include the Button CSS file button/assets/button.css. But just don’t include the YUI JavaScript file button-beta[-min].js.

Instead, use the following JavaScript to replace the functions for button coloring for hover, focus, and active.

YAHOO.util.Event.addListener( window, 'load', function( e )
    {
        var yuiButtons = YAHOO.util.Dom.getElementsByClassName( 'yuibutton', 'span' );
        YAHOO.util.Event.addListener( yuiButtons, 'mouseover', function( e )
        {
            YAHOO.util.Dom.addClass( this, 'hover' );
        } );
        YAHOO.util.Event.addListener( yuiButtons, 'mouseout', function( e )
        {
            YAHOO.util.Dom.removeClass( this, 'hover' );
        } );
        YAHOO.util.Event.addListener( yuiButtons, 'mousedown', function( e )
        {
            YAHOO.util.Dom.addClass( this, 'active' );
        } );
        YAHOO.util.Event.addListener( yuiButtons, 'mouseup', function( e )
        {
            YAHOO.util.Dom.removeClass( this, 'active' );
        } );
        YAHOO.util.Event.addListener( yuiButtons, 'focus', function( e )
        {
            YAHOO.util.Dom.addClass( this, 'focus' );
        } );
        YAHOO.util.Event.addListener( yuiButtons, 'blur', function( e )
        {
            YAHOO.util.Dom.removeClass( this, 'focus' );
        } );
    } );

If you’re just using the standard buttons anyway, you’re going to see a speed improvement in performance on hover color changes.

Zach Leatherman is a builder for the web at Font Awesome and the creator of Build Awesome (née Eleventy/11ty), an award-winning open source website generator. He measures website performance with speedlify and at one point became too fixated on web fonts. He has given 86 talks in nine different countries at events like Beyond Tellerrand, State of the Browser, Smashing Conference, Jamstack Conf, CSSConf, and The White House. Learn more about Zach »